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Preterm BirthNCT00342667

Clinical, Biochemical, Histological and Biophysical Parameters in the Prediction of Cerebral Palsy in Patients With Preterm Labor and Premature Rupture of Membranes

An observational study of Preterm Birth and Pregnancy, run by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) at 5 sites in 4 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A major goal of modern perinatal and neonatal medicine is to reduce the rate of developmental disabilities, especially mental retardation. Cerebral palsy is frequently associated with neurologic abnormalities and mental retardation. Read more about this study

Who is it for?
Ages Up to 45 years
Conditions the study is for
Preterm Birth, Pregnancy
How many people
4,673 participants
Where
5 sitesin 4 countries
Study dates
8 Dec 1997to 15 Sep 2014
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Up to 45 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Study population: This is an observational cohort study designed to identify the mechanisms of disease in patients with preterm labor/contractions and preterm premature rupture of membranes and to describe the relationship between clinical, biochemical, histological, biophysical parameters and the development of infant neurological disorders.@@@

Who may be able to join

  • Consecutive patients admitted with the diagnosis of preterm labor/contractions or PROM.
  • "Preterm labor/contractions" will be defined as:
  • gestational age: 20-36 weeks;
  • intact membranes; and
  • regular uterine contractions greater than or equal to 8 in 60 minutes.
  • Preterm PROM will be defined as:
  • gestational age 20-36 weeks; and
  • spontaneous rupture of membranes as diagnosed by sterile speculum examination confirming pooling of amniotic fluid in the vagina, a positive Nitrazine test result, and a positive ferning test result. In cases of suspected but unconfirmed preterm PROM, indigo carmin instillation will be performed. The vaginal leakage of indigo carmin will confirm the diagnosis in these cases.

Who cannot join

None listed.

Trial locations and contacts

5 sites in 4 countries.

5 sites in 4 countries

United States2 sites
  • National Institute of Child Health and Human Development (NICHD), 9000 Rockville

    Bethesda, Maryland, 20892

  • Hutzel Women's Hospital

    Detroit, Michigan, 48201

Other trials in United States

Chile1 site
  • Sotero del Rio Hospital

    Puente Alto

Other trials in Chile

Israel1 site
  • Ben Gurion University /Soroka Medical Center

    Beersheba

Other trials in Israel

South Korea1 site
  • Seoul National University Hospital

    Seoul

Other trials in South Korea

About this study

A major goal of modern perinatal and neonatal medicine is to reduce the rate of developmental disabilities, especially mental retardation. Cerebral palsy is frequently associated with neurologic abnormalities and mental retardation. Improvements in neonatal intensive care have resulted in improved survival of very low birthweight infants but also in an increased frequency of cerebral palsy. Prematurity is a leading risk factor for cerebral palsy. Two thirds of preterm neonates are born to mothers with preterm labor with intact membranes or preterm premature rupture of membranes. A growing body of evidence suggests that these conditions are heterogeneous. This is an observational cohort study designed to identify the mechanisms of disease in patients with preterm labor/contractions and preterm premature rupture of membranes and to describe the relationship between clinical, biochemical, histological, biophysical parameters and the development of infant neurological disorders.

Read the detailed description

A major goal of modern perinatal and neonatal medicine is to reduce the rate of developmental disabilities, especially mental retardation. Cerebral palsy is frequently associated with neurologic abnormalities and mental retardation. Improvements in neonatal intensive care have resulted in improved survival of very low birthweight infants but also in an increased frequency of cerebral palsy. Prematurity is a leading risk factor for cerebral palsy. Two thirds of preterm neonates are born to mothers with preterm labor with intact membranes or preterm premature rupture of membranes. A growing body of evidence suggests that these conditions are heterogeneous. This is an observational cohort study designed to identify the mechanisms of disease in patients with preterm labor/contractions and preterm premature rupture of membranes and to describe the relationship between clinical, biochemical, histological, biophysical parameters and the development of infant neurological disorders.

Keywords
Pregnancy, Pregnancy Complications, Natural History
Medical subject headings
Premature Birth, Pregnancy Complications

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT00342667
Study groupRoleWhat they receive
1patients with preterm labor/contractions and preterm premature rupture of membranes

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Establish the relationship between these pathologic sub- groups (i.e., intrauterine infection and non infection associated preterm labor/contractions and preterm PROM ) and short and long term neonatal outcome.

    Establish the relationship between these pathologic sub- groups (i.e., intrauterine infection and non infection associated preterm labor /contractions and preterm PROM ) and short and long term neonatal outcome.

    Measured: 1. gestational age: 20-36

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Jun 2006 (estimated)
  2. Study start8 Dec 1997
  3. Primary completion15 Sep 2014
  4. Study completion15 Sep 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
4,673 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00342667
Sponsor's protocol ID
999997066
Other IDs
OH97-CH-N066
Status last verified
Feb 2023
First submitted
19 Jun 2006
Last updated
24 Feb 2023
Results posted
No

Publications

  • Nelson KB, Dambrosia JM, Ting TY, Grether JK. Uncertain value of electronic fetal monitoring in predicting cerebral palsy. N Engl J Med. 1996 Mar 7;334(10):613-8. doi: 10.1056/NEJM199603073341001.

    PubMed 8592523
  • Nicholson A, Alberman E. Cerebral palsy--an increasing contributor to severe mental retardation? Arch Dis Child. 1992 Aug;67(8):1050-5. doi: 10.1136/adc.67.8.1050.

    PubMed 1520012
  • Cummins SK, Nelson KB, Grether JK, Velie EM. Cerebral palsy in four northern California counties, births 1983 through 1985. J Pediatr. 1993 Aug;123(2):230-7. doi: 10.1016/s0022-3476(05)81693-2.

    PubMed 8345418

Questions about this trial

What is this clinical trial studying?

An observational study of Preterm Birth and Pregnancy, run by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) at 5 sites in 4 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Feb 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in United States, Chile, Israel, South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Establish the relationship between these pathologic sub- groups (i.e., intrauterine infection and non infection associated preterm labor/contractions and preterm PROM ) and short and long term neonatal outcome. (time frame: 1. gestational age: 20-36). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00342667, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Feb 2023.

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